Supersymmetry Projection Rules

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1 TIT/HEP-649 Supersymmetry Projection Rules arxiv: v2 [hep-th] 15 Jan 2016 on Exotic Branes Tetsuji Kimura Research and Education Center for Natural Sciences, Keio University Hiyoshi 4-1-1, Yokohama, Kanagawa , JAPAN and Department of Physics, Tokyo Institute of Technology Tokyo , JAPAN tetsuji.kimura at keio.jp Abstract We study the supersymmetry projection rules on exotic branes in type II string theories and M-theory. They justify the validity of the exotic duality between standard branes and exotic branes of codimension two. By virtue of the supersymmetry projection rules on various branes, we can apply the exotic duality to a system which involves multiple non-parallel branes.

2 1 Introduction Exotic branes [1, 2, 3, 4, 5] should play a central role in investigating the non-perturbative dynamics in string theory and gauge theory. This is because the exotic branes originate from standard branes such as fundamental strings (or F-strings, for short), Neveu-Schwarz fivebranes (NS5-branes) and Dirichlet branes (D-branes) via the string dualities in lower dimensions. The standard branes have contributed to understanding the non-perturbative dynamics in string theory and gauge theory [6]. However, compared with the standard branes, the dynamical feature of the exotic branes is still unclear. The main reason is that the transverse space of an exotic brane has a non-trivial monodromy due to the string dualities [7, 8, 5]. Consider, for instance, an exotic brane. This object comes from an NS5-brane via the T- duality along two transverse directions of it. The transverse space has the SO(2, 2; Z) = SL(2, Z) SL(2, Z) monodromy structure which originates from the T-duality [5, 9, 10, 11, 12, 13]. This nontrivial monodromy structure often prevents us from analyzing excitations of the brane. This is completely different from the case of the standard branes 1. The exotic branes are also characterized by their masses. They are different from those of the standard branes. For instance, the masses of an exotic b c n-brane and an exotic b (d,c) n -brane are described as b c n : M = R 1 R b (R b+1 R b+c ) 2 g n s l b+2c+1 s, (1.1a) b (d,c) n : M = R 1 R b (R b+1 R b+c ) 2 (R b+c+1 R b+c+d ) 3 gs n l b+2c+3d+1. (1.1b) s Here g s and l s are the string coupling constant and the string length, respectively. Each R i indicates the radius or size in the i-th direction. R 1 R b represents the volume of the brane expanded along the spatial 12 b directions. Different from those of the standard branes, the mass formulae (1.1) possess multiple powers of radii such as (R b+1 ) 2. The expressions (1.1) are derived from those of the standard branes via the string dualities: T y -duality : R y l2 s R y, g s l s R y g s, (1.2a) S-duality : g s 1 g s, l s g 1/2 s l s. (1.2b) For instance, consider the brane again. As mentioned above, this comes from an NS5-brane whose mass is M = R 1R 2 R 5 g 2 sl 6 s, (1.3) when the NS5-brane is expanded along the directions. Following the nomenclature in [10], we refer to this as NS5(12345). Performing the T-duality along the 89-directions, we obtain the 1 Strictly speaking, a D7-brane has also an SL(2, Z) monodromy originated from the string S-duality [7]. 2

3 5 2 2 (12345,89)-brane whose mass is M = R 1R 2 R 5 (R 8 R 9 ) 2 g 2 sl 10 s. (1.4) Another feature of the exotic branes is that the codimension, i.e., the difference between the bulk spacetime dimensions and the worldvolume dimensions, is less than three. This implies that the single exotic brane has not well-defined background geometry in the supergravity framework. For instance, in the case of a standard brane of codimension k > 3, its background geometry is governed by a harmonic function of r k+2, where r indicates the distance from the core of the brane. If the codimension is two or one, the harmonic function becomes logarithmic or linear, respectively. Due to the above features, it is often difficult to analyze the global structure of the exotic branes. However, since the exotic branes are cousins of the standard branes, their BPS conditions should be characterized in the same way as those of the standard branes. For instance, a Dp-brane stretched along the 12 p directions preserves supercharges of the form ɛ L Q L + ɛ R Q R with ɛ L = Γ 012 p ɛ R, (1.5) where ɛ L and ɛ R are the supersymmetry parameters given by the Majorana-Weyl fermions with left- and right-chirality, respectively. Q L and Q R are the corresponding left and right supercharges, and Γ a is the a-th Dirac gamma matrix. We refer to (1.5) as the supersymmetry projection rule. In this paper, we will explore the supersymmetry projection rules on various exotic branes in type II string theories and M-theory [4]. Before moving to the main part of this paper, we also mention an interesting relation among defect branes of codimension two [14]. There are various defect branes in D-dimensional spacetime. We gather them in Table 1: D n = 0 n = 1 n = 2 n = 3 n = 4 IIB D7 [C 8 ] 7 3 [E 8 ] 9 D6 [C 7 ] NS5 [D 6 ] [E 8,1] 8 D5 [C 6 ] KK5 [D 7,1 ] [D 8,2] [E 8,2] 7 D4 [C 5 ] [E 8,3] 6 D3 [C 4 ] [E 8,4] 5 D2 [C 3 ] [E 8,5] 4 F1 [B 2 ] D1 [C 2 ] [E 8,6] [F 8,6] 3 P D0 [C 1 ] [E 8,7] 0 (1,6) 4 [F 8,7,1 ] Table 1: Defect branes in D-dimensional spacetime. Here the integer n in the first row indicates the power of the string coupling constant in each brane s mass. Dp means the Dp-brane, while b c n and b n (d,c) represent the exotic branes. F1 and P denote the F-string and the pp-wave which also behave as the defect branes in four and three dimensions, respectively. The labels in brackets represent the tensor fields coupling to the corresponding defect branes. We refer to the branes of n = 0, 1, 2 as fundamental, Dirichlet, and solitonic branes, respectively [14]. 3

4 There exists the exotic duality under which the standard branes of n = 0, 1 are mapped to the exotic branes of n = 4, 3 and vice versa, and the solitonic branes of n = 2 are mapped to other solitonic branes [14, 15]. This duality is illustrated in Figures 1 and 2: T (1) T (p 1) T (7 p) S P F1 D1 Dp D7 E E E E S 0 (1,6) p 7 p T (1) S T (p 1) T (7 p) Figure 1: Exotic duality, S-duality and T-duality along k directions (labelled as E, S and T (k), respectively) among the standard branes and the exotic branes [14, 15]. D5(12345) S NS5(12345) E T (12345,89) 52 2 (12345,89) S Figure 2: Exotic duality between D5-brane and brane. The terminology T 89 implies that the T-duality is performed along the 89-directions. It is remarked that this T 89 -duality between NS5-brane and brane is also interpreted as an exotic duality [14, 15]. The exotic duality of a single brane was suggested in [14] from the viewpoint of the string duality groups and their representations. This was also analyzed in [16] by virtue of the E 11 supergravity technique. Furthermore, in the framework of other extended supergravity such as β- supergravity [17, 18] and its extended version [19, 15] 2, the exotic duality was further investigated. In this work, we would like to confirm the validity of the exotic duality from the viewpoint of the supersymmetry projection rules as (1.5), and apply it to new brane configurations which involve multiple non-parallel (exotic) branes. The structure of this paper is as follows. In section 2, we first list the supersymmetry projection rules on the standard branes. Extracting the string dualities acting on the supersymmetry parameters, we explicitly write down the supersymmetry projection rules on the exotic branes. We find that their expressions justify the exotic duality from the supersymmetry viewpoint. In order to check consistency, we apply the supersymmetry projection rules on the exotic branes to certain brane configurations which contain exotic branes. In section 3, we consider the exotic duality applied to multiple non-parallel branes. By virtue of the supersymmetry projection rules discussed in section 2, we find various interesting configurations. Section 4 is devoted to conclusion and discussions. In appendix A the detailed computations to derive the supersymmetry projection rules on various exotic branes are explicitly described. 2 The extended version of β-supergravity [19, 15] involves the Ramond-Ramond potentials C p and their string dualized objects γ p. This formulation may be referred to as γ-supergravity. 4

5 2 Supersymmetry projection rules In this section, we first exhibit the supersymmetry projection rules such as (1.5) on the standard branes in type II string theories and M-theory. Following the rules, we introduce the string dualities acting on the supersymmetry parameters. Using the string dualities, we write down the rules on various exotic branes. To avoid complications, we do not write down the concrete derivation of each exotic brane in this section. It is summarized in appendix A. Next, we apply the supersymmetry projection rules to certain brane configurations derived from an F-string ending on a D3-brane. Analogous to the string dualities on the mass formulae of branes (1.2), we do not seriously consider the global structures of them. 2.1 Rules on standard branes First of all, we gather the supersymmetry projection rules on the standard branes. They are very common and can be seen in the literature (see, for instance, the instructive reviews [20, 6]): Standard branes in IIA theory: Γɛ = σ 3 ɛ, or equivalently Γɛ L = +ɛ L, Γɛ R = ɛ R, (2.1a) P(1) : ±ɛ = Γ 01 ɛ, (2.1b) F1(1) : ±ɛ = Γ 01 Γɛ, NS5(12345) : ±ɛ = Γ ɛ, (2.1c) { Dp(12 p) : ±ɛ = Γ 012 p 1 : p = 2, 6, A p (σ 1 )ɛ, A p (2.1d) Γ : p = 0, 4, 8. Standard branes in IIB theory: Γɛ = ɛ, or equivalently Γɛ L = +ɛ L, Γɛ R = +ɛ R, (2.2a) P(1) : ±ɛ = Γ 01 ɛ, (2.2b) F1(1) : ±ɛ = Γ 01 (σ 3 )ɛ, NS5(12345) : ±ɛ = Γ (σ 3 )ɛ, (2.2c) { Dp(12 p) : ±ɛ = Γ 012 p σ 1 : p = 1, 5, 9, B p ɛ, B p (2.2d) iσ 2 : p = 3, 7. Standard branes in M-theory: M2(12) : ±η = Γ 012 η, (2.3a) M5(12345) : ±η = Γ η. (2.3b) In order to make the discussion clear, we introduced a doublet of two supersymmetry parameters ɛ L and ɛ R in such a way as ɛ (ɛ L, ɛ R ) T. This is a Majorana spinor in type IIA theory, while this can be interpreted as an SL(2, Z) doublet in type IIB theory. Due to this description, we also introduced the Pauli matrices σ i acting on the doublet ɛ. We also note that Γ is the 5

6 chirality operator defined as Γ = Γ in terms of the Dirac gamma matrices Γ a. They are subject to the Clifford algebra {Γ a, Γ b } = 2η ab. In this work we use the mostly plus signature η ab = diag.( + + +). In the case of M-theory, the supersymmetry parameter η is a Majorana spinor. Dirac gamma matrices in eleven dimensions are the same as those in ten dimensions, while the chirality operator Γ is uplifted to the eleventh gamma matrix Γ in eleven-dimensional theory. 2.2 Dualities on supersymmetry parameters Since various standard branes are related to each other via the string dualities, there should exist the duality transformation rules on the supersymmetry parameters ɛ L and ɛ R. Here, without the derivation, we exhibit the T-duality and S-duality [21] (for instance, see the lecture note [22]): T y -duality : ɛ L ɛ L, ɛ R Γ y Γɛ R, (2.4a) S-duality : ɛ Sɛ, S = 1 ( ) 12 iσ 2. (2.4b) 2 We have a couple of comments on the above rules. In the case of the T y -duality, the operator Γ y Γ generates the parity transformation along the y-direction such as (Γ y Γ) 1 Γ y (Γ y Γ) = Γ y, while this behaves as an identity operator acting on the other Γ i (i y) as follows: (Γ y Γ) 1 Γ i (Γ y Γ) = Γ i. In the S-duality case, this rule does not change the supersymmetry projection rule on the D3-brane. This is expressed by S 1 (iσ 2 )S = iσ 2. On the other hand, the operator S transforms σ 1 and σ 3 in such a way as S 1 σ 1 S = σ 3 and S 1 σ 3 S = σ 1. Under this transformation, the F-string and the NS5-brane are mapped to the D-string and the D5-brane, and vice versa. Geometrically, the S-duality transformation means a rotation along the second axis of the three-dimensional SL(2, Z) space. 2.3 Rules on exotic branes Applying the string dualities to the supersymmetry projection rules on the standard branes, we can derive those of various exotic branes in a straightforward way. As mentioned before, the explicit computations are listed in appendix A. Here we summarize the supersymmetry projection rules on the solitonic branes, the defect branes and the domain walls. First we exhibit the rules on the solitonic branes in type IIA and IIB theories, respectively. Solitonic five-branes in IIA theory: NS5(12345) : ±ɛ = Γ ɛ, (2.5a) KK5(12345, 9) : ±ɛ = Γ Γɛ, (2.5b) 5 2 2(12345, 89) : ±ɛ = Γ ɛ, (2.5c) 5 3 2(12345, 789) : ±ɛ = Γ Γɛ, (2.5d) 5 4 2(12345, 6789) : ±ɛ = Γ ɛ. (2.5e) 6

7 Solitonic five-branes in IIB theory: NS5(12345) : ±ɛ = Γ (σ 3 )ɛ, (2.6a) KK5(12345, 9) : ±ɛ = Γ ɛ, (2.6b) 5 2 2(12345, 89) : ±ɛ = Γ (σ 3 )ɛ, (2.6c) 5 3 2(12345, 789) : ±ɛ = Γ ɛ, (2.6d) 5 4 2(12345, 6789) : ±ɛ = Γ (σ 3 )ɛ. (2.6e) We find that the transverse directions with isometry (i.e., the 6789-directions) do not contribute to the supersymmetry projection rules. On the other hand, analogous to the NS5- brane, the hyperplanes in which the five-branes are stretched provide the projections. The above expressions guarantee that the defect (p, q) five-brane, a bound state of a defect NS5(12345) and an exotic (12345, 89), is a 1/2-BPS object in string theory [11, 12, 13], while a bound state of a KK5(12345,9) and a (12345, 89) breaks supersymmetry. Next, we gather the supersymmetry projection rules on the defect branes [5, 14, 10] in Table 1. Defect branes in IIA theory: Defect branes in IIB theory: 6 1 3(123456, 7) : ±ɛ = Γ (σ 1 )ɛ, (2.7a) 4 3 3(1234, 567) : ±ɛ = Γ Γ(σ 1 )ɛ, (2.7b) 2 5 3(12, 34567) : ±ɛ = Γ 012 (σ 1 )ɛ, (2.7c) 0 7 3(, ) : ±ɛ = Γ 0 Γ(σ 1 )ɛ, (2.7d) 1 6 4(1, ) : ±ɛ = Γ 01 Γɛ, (2.7e) 0 (1,6) 4 (, , 1) : ±ɛ = Γ 01 ɛ. (2.7f) 7 3 ( ) : ±ɛ = Γ (iσ 2 )ɛ, (2.8a) 5 2 3(12345, 67) : ±ɛ = Γ (σ 1 )ɛ, (2.8b) 3 4 3(123, 4567) : ±ɛ = Γ 0123 (iσ 2 )ɛ, (2.8c) 1 6 3(1, ) : ±ɛ = Γ 01 (σ 1 )ɛ, (2.8d) 1 6 4(1, ) : ±ɛ = Γ 01 (σ 3 )ɛ, (2.8e) 0 (1,6) 4 (, , 1) : ±ɛ = Γ 01 ɛ. (2.8f) We have summarized the supersymmetry projection rules on all the defect branes in Table 1. We have comments on the defect branes. The supersymmetry projection rule on each defect p 7 p 3 -brane coincides with that of the Dp-brane. These two branes are exotic dual. The rules on the brane and the 0(1,6) 4 -brane in type IIA/IIB theories are also exactly same as those of the F-string and the pp-wave, respectively. The former exotic branes are exotic dual of the latter standard branes [14, 15]. 7

8 Applying the additional string dualities to the defect branes in Table 1, we obtain the domain walls represented as b (1,c) 3 -branes and b (d,3) 4 -branes [23]. Domain walls in IIA theory: Domain walls in IIB theory: 7 (1,0) 3 ( ,, 9) : ±ɛ = Γ Γ(σ 1 )ɛ, (2.9a) 5 (1,2) 3 (12345, 67, 9) : ±ɛ = Γ (σ 1 )ɛ, (2.9b) 3 (1,4) 3 (123, 4567, 9) : ±ɛ = Γ Γ(σ 1 )ɛ, (2.9c) 1 (1,6) 3 (1, , 9) : ±ɛ = Γ 019 (σ 1 )ɛ, (2.9d) 5 3 4(12345, 789) : ±ɛ = Γ ɛ, (2.9e) 4 (1,3) 4 (1234, 789, 5) : ±ɛ = Γ Γɛ, (2.9f) 3 (2,3) 4 (123, 789, 45) : ±ɛ = Γ ɛ, (2.9g) 2 (3,3) 4 (12, 789, 345) : ±ɛ = Γ Γɛ, (2.9h) 1 (4,3) 4 (1, 789, 2345) : ±ɛ = Γ ɛ, (2.9i) 0 (5,3) 4 (, 789, 12345) : ±ɛ = Γ Γɛ. (2.9j) 6 (1,1) 3 (123456, 7, 9) : ±ɛ = Γ (iσ 2 )ɛ, (2.10a) 4 (1,3) 3 (1234, 567, 9) : ±ɛ = Γ (σ 1 )ɛ, (2.10b) 2 (1,5) 3 (12, 34567, 9) : ±ɛ = Γ 0129 (iσ 2 )ɛ, (2.10c) 0 (1,7) 3 (, , 9) : ±ɛ = Γ 09 (σ 1 )ɛ, (2.10d) 5 3 4(12345, 789) : ±ɛ = Γ ɛ, (2.10e) 4 (1,3) 4 (1234, 789, 5) : ±ɛ = Γ (σ 3 )ɛ, (2.10f) 3 (2,3) 4 (123, 789, 45) : ±ɛ = Γ ɛ, (2.10g) 2 (3,3) 4 (12, 789, 345) : ±ɛ = Γ (σ 3 )ɛ, (2.10h) 1 (4,3) 4 (1, 789, 2345) : ±ɛ = Γ ɛ, (2.10i) 0 (5,3) 4 (, 789, 12345) : ±ɛ = Γ (σ 3 )ɛ. (2.10j) We have comments on the rules on the domain walls. Analogous to D-branes, there exist the BPS (2b + 1) (1,c) 3 -branes in type IIA theory, and the BPS (2b) (1,c) 3 -branes in type IIB theory. On the other hand, there exist the BPS b (d,3) 4 -branes with b + d = 5 in both IIA and IIB theories. It is noticed that the above is not the complete list of the domain walls. There exist other kinds of domain walls in type II string theories. For instance, we find a type IIB (12345, 6789)-brane originated from a type IIB NS5(12345)-brane via the string ST dualities. More complicatedly, a type IIB 3 (1,2,3) 4 (123, 678, 45, 9)-brane can be derived from the type IIB NS5(12345)-brane under the string T 459 ST 678 -dualities. In principle, we can obtain the supersymmetry projection rules on the brane and the 3(1,2,3) 4 -brane under the duality rules (2.4), in the same way as the derivation of their masses by using (1.2). 8

9 As listed above, the supersymmetry projection rules on the exotic branes are quite similar to those of the standard branes. In particular, we emphasize that the rules on the defect branes (2.7) and (2.8) coincide with those of the standard branes (2.1) and (2.2), respectively. Hence they justify the validity of the exotic duality illustrated in Figures 1 and 2 from the supersymmetry viewpoint. 2.4 Exotic branes in M-theory Once we have understood the supersymmetry projection rules in type IIA theory, we can uplift them to those in M-theory. This procedure is simple because the type IIA supersymmetry parameters ɛ becomes a Majorana spinor η in M-theory. Uplifting type IIA theory to M-theory, we can also interpret the chirality operator Γ as the eleventh Dirac gamma matrix Γ. Furthermore, we have also known the relation among the string coupling g s, the string length l s, the radius of the M-theory circle R and the eleven-dimensional Planck length l P in the literature: ɛ = η, Γ = Γ, (2.11a) g s l s = R, g 1/3 s l s = l P. (2.11b) Applying the uplift to various exotic branes in type IIA theory, we obtain the exotic branes and their supersymmetry projection rules: KK6(12345,9) : ±η = Γ η, (2.12a) 5 3 (12345, 89 ) : ±η = Γ η, (2.12b) 5 (1,3) (12345, 789, ) : ±η = Γ η, (2.12c) 2 6 (1, ) : ±η = Γ 01 η, (2.12d) 0 (1,7) (, , 1) : ±η = Γ 01 η. (2.12e) We again summarized the detailed computations in appendix A.4. Here, for simplicity, we skipped consideration of the uplift of the domain walls in (2.9). 2.5 Brane configurations as a consistency check In order to check consistency of the supersymmetry projection rules on the exotic branes, we apply them to a certain brane configuration. In this paper we focus on the system in which a brane is ending on another brane. A typical example is the system of an F-string ending on a D3-brane described in Figure 3: D3(567) IIB F1(8) D3 F1 Figure 3: F-string ending on D3-brane. D3-brane is expanded in the 567-plane. The F-string is stretched along the 8-th direction, while the 9

10 It is easy to confirm that the supersymmetry projection rules on the D3-brane and the F-string (2.2) preserve one quarter supersymmetry of the system in Figure 3. Next, we apply the string dualities to the system in Figure 3 and obtain various configurations. Performing the S-duality and the T-dualities along the 1234-directions, and again the S-duality, we obtain the configuration in which the 7 3 -brane is involved (see Figure 4): 7 3 ( ) IIB NS5(12348) 7 3 NS5 Figure 4: NS5-brane ending on 7 3 -brane. This is ST 1234 S-dual of the configuration in Figure 3. We note that the 7 3 -brane is also called the NS7-brane or the (0,1) sevenbrane. Since the configuration in Figure 4 is derived from that in Figure 3 via the string ST 1234 S-dualities, this should also preserve the 1/4-BPS condition. This can be confirmed by using the supersymmetry projection rules on the IIB NS5-brane in (2.2) and the 7 3 -brane in (2.8). The former is given as ɛ = Γ ɛ and the latter is ɛ = Γ ɛ. These two conditions provide the equation ɛ = Γ 5678 ɛ. Since Γ 5678 is traceless and its square becomes the identity, we can choose the +1 eigenvalue of the supersymmetry parameter ɛ. Thus it turns out that the configuration preserves one quarter supersymmetry. We can consider a more complicated brane configuration. Applying the ST dualities to the system in Figure 4, we obtain the brane configuration in which the domain wall brane is ending on the domain wall 4 (1,3) 4 -brane (see Figure 5): 4 (1,3) 4 (1235,467,9) (12348,679) IIB (1,3) Figure 5: brane ending on 4 (1,3) 4 -brane. This is ST dual of the configuration in Figure 4. The symbols 2 and 3 in the table imply that the mass of the brane depends on the corresponding direction with the describing power (see the general mass formulae (1.1)). We consider the supersymmetry projection rules on the type IIB 4 (1,3) 4 -brane and the brane in (2.10). The former is ɛ = Γ (σ 3 )ɛ, while the latter is ɛ = Γ ɛ. Splitting them into the equation for ɛ L and ɛ R, we obtain ɛ L = Γ 4589 ɛ L and ɛ R = +Γ 4589 ɛ R. Since Γ 4589 is traceless and its square is the identity, we can choose the eigenvalues 1 and +1 on the parameters ɛ L and ɛ R, respectively. Hence we can again find that the configuration preserves one quarter supersymmetry in type IIB theory. 10

11 3 Exotic dualities of multiple branes In the previous section, we have established the supersymmetry projection rules on the exotic branes as well as those of the standard branes. As mentioned before, the exotic duality was first discussed in [14] and further developed in [15]. This is the duality between a single standard brane and a single exotic brane, as illustrated in Figures 1 and 2. In this section, we explore the exotic duality of multiple non-parallel (exotic) branes. First we apply the exotic duality to a Dp-brane ending on a D(p + 2)-brane in Figure 6: D(p+2) (p+2) 5 p 3 Dp exotic duality p 7 p 3 Figure 6: Exotic duality from D(p + 2) Dp system to (p + 2) 5 p 3 p 7 p 3 system. Under the exotic duality, the Dp-brane and the D(p + 2)-brane are mapped to the p 7 p 3 -brane and the (p + 2) 5 p 3 -brane, respectively. Here we should notice that the exotic duality from Dp to p 7 p 3 is given as the T (7 p) ST (7 p) -dualities, while the exotic duality from D(p + 2) to (p + 2) 5 p 3 is the T (5 p) ST (5 p) -dualities 3, as illustrated in Figure 1. These two dualities do not apparently coincide with each other. However, since we have already understood that the supersymmetry projection rules on the Dp-brane and the D(p + 2)-brane are exactly same as those of the p 7 p 3 -brane and the (p + 2) 5 p 3 -brane, we would be able to perform the exotic duality to the multiple branes system consistently. Similarly, we can also consider the exotic duality of the configuration in which a solitonic brane is ending on a Dp-brane as in Figure 7: Dp p 7 p 3 5 c 2 exotic duality 5 2 c 2 Figure 7: Exotic duality from Dp 5 c 2 system to p 7 p c 2 system, where c is restricted to c = 0, 1, 2. Here the integer c is restricted to c = 0, 1, 2 in order to avoid the emergence of a domain wall. This map would be also applicable because the supersymmetry projection rule on the 5 c 2-brane coincide with that of the 5 2 c 2 -brane. Furthermore, we can consider the exotic duality of the D3 F1 system in Figure 8: 3 As introduced in section 1, the terminology T (k) indicates the T-duality along k directions. 11

12 D F1 exotic duality Figure 8: Exotic duality from D3 F1 system to system. Again the supersymmetry projection rule on the brane is equal to that of the F-string. Once we recognize the validity of the exotic duality in Figure 8, we can immediately apply the T-dualities to this system and obtain the configurations in Figure 9: Dp p 7 p 3 F1 exotic duality Figure 9: Exotic duality from Dp F1 system to p 7 p system. Since both the F-string and the brane exist in type IIA theory as well as in type IIB theory, the exotic duality of any integer p in Figure 9 is applicable. We would be able to consider a certain property from the two configurations in Figure 9. In the left picture, we can read off the excitations of the Dp-brane in terms of the mode excitations of the (open) F-string ending on the Dp-brane in the small string coupling regime g s 0. In the same analogy, we would be able to read off the excitations of the defect p 7 p 3 -brane in terms of the mode excitations of the (open) defect brane in the strong coupling limit g s. Unfortunately, however, we have not understood any mode excitations of the brane. Then it seems quite difficult to evaluate the excitations of the defect p 7 p 3 -branes in our current understanding. We have studied the validity of the exotic duality applied to the configurations of the multiple non-parallel (exotic) branes. In order to prove this validity completely, we have to take care of the non-trivial monodromy structure of each brane. Since this task is beyond the scope of this work, we would like to study this issue in a future work. 4 Conclusion and discussions In this paper, we studied the supersymmetry projection rules on various exotic branes in type II string theories and M-theory. Following the string dualities acting on the mass formulae and the supersymmetry parameters, we obtained the explicit expressions of the projection rules. By virtue of the rules, we discussed the exotic duality among the defect branes in type II theories. Furthermore, we applied the exotic duality to the configurations of multiple non-parallel branes. Applying the exotic duality to the configurations in which a brane is ending on another brane, 12

13 we could read off the situations that (exotic) branes can be ending on (exotic) branes. This is analogous to the case of the standard branes. In this work we did not seriously consider the global structure of the spacetime modified by the non-trivial monodromy caused by the string dualities, and the back reactions originated from the strong tensions of the exotic branes. However, we can trust the supersymmetry projection rules on the exotic branes as far as we concern the supersymmetric configurations. In the configuration that the exotic brane is ending on the exotic p7 p 3 -brane, we would be able to expect that the excitations on the p 7 p 3 -branes could be evaluated in terms of the mode expansions of the exotic brane in the string coupling region g s. This is a naive analogy from the configuration that the F-string is ending on the D-brane. In order to analyze this issue, the extended supergravity theories such as β-supergravity and its further extension which contains the dualized Ramond-Ramond potentials might be a strong framework. Acknowledgements The author thanks Tetsutaro Higaki, Yosuke Imamura, Hirotaka Kato, Shin Sasaki, Masaki Shigemori and Hongfei Shu for helpful discussions and comments. He also thanks the Yukawa Institute for Theoretical Physics at Kyoto University for hospitality during the YITP workshop on Microstructures of black holes (YITP-W-15-20). This work is supported by the MEXT-Supported Program for the Strategic Research Foundation at Private Universities Topological Science (Grant No. S ). This is also supported in part by the Iwanami-Fujukai Foundation. Appendix A Computations In this appendix we exhibit the supersymmetry projection rules on various exotic branes derived from the string dualities (1.2), (2.4) and (2.11). A.1 SUSY projection rules on solitonic branes Descendants from IIA NS5-brane IIA NS5(12345) T 9 IIB KK5(12345,9): IIA NS5(12345) : ±ɛ = Γ ɛ, i.e., ± ɛ L = Γ ɛ L, ±ɛ R = Γ ɛ R, T 9 -duality : ɛ R Γ 9 Γɛ R, ±ɛ R = ΓΓ 9 Γ Γ 9 Γɛ R = Γ ɛ R, 13

14 IIB KK5(12345,9) : ±ɛ L = Γ ɛ L, ±ɛ R = Γ ɛ R, IIB KK5(12345,9) T 8 IIA (12345, 89): namely, ± ɛ = Γ ɛ. (A.1) IIB KK5(12345,9) : ±ɛ = Γ ɛ, i.e., ± ɛ L = Γ ɛ L, ±ɛ R = Γ ɛ R, T 8 -duality : ɛ R Γ 8 Γɛ R, ±ɛ R = ΓΓ 8 Γ Γ 8 Γɛ R = Γ ɛ R, IIA 5 2 2(12345, 89) : ±ɛ L = Γ ɛ L, ±ɛ R = Γ ɛ R, IIA (12345, 89) T 7 IIB (12345, 789): namely, ± ɛ = Γ ɛ. (A.2) IIA 5 2 2(12345, 89) : ±ɛ = Γ ɛ, i.e., ± ɛ L = Γ ɛ L, ±ɛ R = Γ ɛ R, T 7 -duality : ɛ R Γ 7 Γɛ R, ±ɛ R = ΓΓ 7 Γ Γ 7 Γɛ R = Γ ɛ R, IIB 5 3 2(12345, 789) : ±ɛ L = Γ ɛ L, ±ɛ R = Γ ɛ R, IIB (12345, 789) T 6 IIA (12345, 6789): namely, ± ɛ = Γ ɛ. (A.3) IIB 5 3 2(12345, 789) : ±ɛ = Γ ɛ, i.e., ± ɛ L = Γ ɛ L, ±ɛ R = Γ ɛ R, T 6 -duality : ɛ R Γ 6 Γɛ R, ±ɛ R = ΓΓ 6 Γ Γ 6 Γɛ R = Γ ɛ R, IIA 5 4 2(12345, 6789) : ±ɛ L = Γ ɛ L, ±ɛ R = Γ ɛ R, namely, ± ɛ = Γ ɛ. (A.4) Descendants from IIB NS5-brane IIB NS5(12345) T 9 IIA KK5(12345,9): IIB NS5(12345) : ±ɛ = Γ (σ 3 )ɛ, i.e., ± ɛ L = Γ ɛ L, ±ɛ R = Γ ɛ R, T 9 -duality : ɛ R Γ 9 Γɛ R, ±ɛ R = ΓΓ 9 Γ Γ 9 Γɛ R = Γ ɛ R, IIA KK5(12345,9) : ±ɛ L = Γ ɛ L, ±ɛ R = Γ ɛ R, namely, ± ɛ = Γ Γɛ. (A.5) 14

15 IIA KK5(12345,9) T 8 IIB (12345, 89): IIA KK5(12345,9) : ±ɛ = Γ Γɛ, i.e., ± ɛ L = Γ ɛ L, ±ɛ R = Γ ɛ R, T 8 -duality : ɛ R Γ 8 Γɛ R, ±ɛ R = ΓΓ 8 Γ Γ 8 Γɛ R = Γ ɛ R, IIB 5 2 2(12345, 89) : ±ɛ L = Γ ɛ L, ±ɛ R = Γ ɛ R, IIB (12345, 89) T 7 IIA (12345, 789): namely, ± ɛ = Γ (σ 3 )ɛ. (A.6) IIB 5 2 2(12345, 89) : ±ɛ = Γ (σ 3 )ɛ, i.e., ± ɛ L = Γ ɛ L, ±ɛ R = Γ ɛ R, T 7 -duality : ɛ R Γ 7 Γɛ R, ±ɛ R = ΓΓ 7 Γ Γ 7 Γɛ R = Γ ɛ R, IIA 5 3 2(12345, 789) : ±ɛ L = Γ ɛ L, ±ɛ R = Γ ɛ R, IIA (12345, 789) T 6 IIB (12345, 6789): namely, ± ɛ = Γ Γɛ. (A.7) IIA 5 3 2(12345, 789) : ±ɛ = Γ Γɛ, i.e., ± ɛ L = Γ ɛ L, ±ɛ R = Γ ɛ R, T 6 -duality : ɛ R Γ 6 Γɛ R, ±ɛ R = ΓΓ 8 Γ Γ 8 Γɛ R = Γ ɛ R, IIB 5 4 2(12345, 6789) : ±ɛ L = Γ ɛ L, ±ɛ R = Γ ɛ R, namely, ± ɛ = Γ (σ 3 )ɛ. (A.8) A.2 SUSY projection rules on defect branes Descendants from IIB D7-brane IIB D7( ) S IIB 7 3 ( ): IIB 7 3 ( ) T 7 IIA (123456, 7): D7( ) : ±ɛ = Γ (iσ 2 )ɛ, S-duality : ɛ Sɛ, IIB 7 3 ( ) : ±ɛ = Γ S 1 (iσ 2 )Sɛ IIB 7 3 ( ) : ±ɛ = Γ (iσ 2 )ɛ, = Γ (iσ 2 )ɛ. (A.9) 15

16 i.e., ± ɛ L = Γ ɛ R, T 7 -duality : ɛ R Γ 7 Γɛ R, ±ɛ L = Γ Γ 7 Γɛ R = Γ ɛ R, IIA 6 1 3(123456, 7) : ±ɛ L = Γ ɛ R, namely, ± ɛ = Γ (σ 1 )ɛ R. (A.10) In the right-hand side, there is a negative sign which should not distract attention because this merely comes from the anti-commutation relations among the Dirac gamma matrices. In later computations we often encounter the same situation. IIA (123456, 7) T 6 IIB (12345, 67): IIA 6 1 3(123456, 7) : ±ɛ = Γ (σ 1 )ɛ, i.e., ± ɛ L = Γ ɛ R, T 6 -duality : ɛ R Γ 6 Γɛ R, ±ɛ L = Γ Γ 6 Γɛ R = Γ ɛ R, IIB 5 2 3(12345, 67) : ±ɛ L = Γ ɛ R, namely, ± ɛ = Γ (σ 1 )ɛ. (A.11) IIB (12345, 67) T 5 IIA (1234, 567): IIB 5 2 3(12345, 67) : ±ɛ = Γ (σ 1 )ɛ, i.e., ± ɛ L = Γ ɛ R, T 5 -duality : ɛ R Γ 5 Γɛ R, IIA 4 3 3(1234, 567) : ±ɛ L = Γ ɛ R, ±ɛ L = Γ Γ 5 Γɛ R = +Γ ɛ R, namely, ± ɛ = Γ Γ(σ 1 )ɛ. (A.12) IIA (1234, 567) T 4 IIB (123, 4567): IIA 4 3 3(1234, 567) : ±ɛ = Γ Γ(σ 1 )ɛ, i.e., ± ɛ L = Γ ɛ R, T 4 -duality : ɛ R Γ 4 Γɛ R, IIB 3 4 3(123, 4567) : ±ɛ L = Γ 0123 ɛ R, ±ɛ L = Γ Γ 4 Γɛ R = +Γ 0123 ɛ R, namely, ± ɛ = Γ 0123 (iσ 2 )ɛ. (A.13) IIB (123, 4567) T 3 IIA (12, 34567): IIB 3 4 3(123, 4567) : ±ɛ = Γ 0123 (iσ 2 )ɛ, 16

17 i.e., ± ɛ L = Γ 0123 ɛ R, T 3 -duality : ɛ R Γ 3 Γɛ R, ±ɛ L = Γ 0123 Γ 3 Γɛ R = Γ 012 ɛ R, IIA 2 5 3(12, 34567) : ±ɛ L = Γ 012 ɛ R, namely, ± ɛ = Γ 012 (σ 1 )ɛ. (A.14) IIA (12, 34567) T 2 IIB (1, ): IIA 2 5 3(12, 34567) : ±ɛ = Γ 012 (σ 1 )ɛ, i.e., ± ɛ L = Γ 012 ɛ R, T 2 -duality : ɛ R Γ 2 Γɛ R, ±ɛ L = Γ 012 Γ 2 Γɛ R = Γ 01 ɛ R, IIB 1 6 3(1, ) : ±ɛ L = Γ 01 ɛ R, namely, ± ɛ = Γ 01 (σ 1 )ɛ. (A.15) IIB (1, ) T 1 IIA (, ): IIB 1 6 3(1, ) : ±ɛ = Γ 01 (σ 1 )ɛ, i.e., ± ɛ L = Γ 01 ɛ R, T 1 -duality : ɛ R Γ 1 Γɛ R, IIA 0 7 3(, ) : ±ɛ L = Γ 0 ɛ R, ±ɛ L = Γ 01 Γ 1 Γɛ R = +Γ 0 ɛ R, namely, ± ɛ = Γ 0 Γ(σ 1 )ɛ. (A.16) Descendants from IIB p 7 p 3 -branes via S-duality IIB (12345, 67) S IIB (12345, 67): IIB 5 2 3(12345, 67) : ±ɛ = Γ (σ 1 )ɛ, S-duality : ɛ Sɛ, IIB 5 2 2(12345, 67) : ±ɛ = Γ S 1 (σ 1 )Sɛ = Γ (σ 3 )ɛ. (A.17) IIB (1234, 567) S IIB (123, 4567): IIB 3 4 3(123, 4567) : ±ɛ = Γ 0123 (iσ 2 )ɛ, S-duality : ɛ Sɛ, IIB 3 4 3(123, 4567) : ±ɛ = Γ 0123 S 1 (iσ 2 )Sɛ = Γ 0123 (iσ 2 )ɛ (self-dual). (A.18) 17

18 IIB (1, ) S IIB (1, ): IIB 1 6 3(1, ) : ±ɛ = Γ 01 (σ 1 )ɛ, S-duality : ɛ Sɛ, IIB 1 6 4(1, ) : ±ɛ = Γ 01 S 1 (σ 1 )Sɛ = Γ 01 (σ 3 )ɛ. (A.19) Descendants from IIB brane via T-duality IIB (1, ) T 2 IIA (1, ): IIB 1 6 4(1, ) : ±ɛ = Γ 01 (σ 3 )ɛ, i.e., ± ɛ L = Γ 01 ɛ L, ±ɛ R = +Γ 01 ɛ R, T 2 -duality : ɛ R Γ 2 Γɛ R, ±ɛ R = +ΓΓ 2 Γ 01 Γ 2 Γɛ R = +Γ 01 ɛ R, IIA 1 6 4(1, ) : ±ɛ L = Γ 01 ɛ L, ±ɛ R = +Γ 01 ɛ R, namely, ± ɛ = Γ 01 Γɛ. (A.20) IIB (1, ) T 1 IIA 0 (1,6) 4 (, , 1): IIB 1 6 4(1, ) : ±ɛ = Γ 01 (σ 3 )ɛ, i.e., ± ɛ L = Γ 01 ɛ L, ±ɛ R = +Γ 01 ɛ R, T 1 -duality : ɛ R Γ 1 Γɛ R, ±ɛ R = +ΓΓ 1 Γ 01 Γ 1 Γɛ R = Γ 01 ɛ R, IIA 0 (1,6) 4 (, , 1) : ±ɛ L = Γ 01 ɛ L, ±ɛ R = Γ 01 ɛ R, namely, ± ɛ = Γ 01 ɛ. (A.21) IIA (1, ) T 1 IIB 0 (1,6) 4 (, , 1): IIA 1 6 4(1, ) : ±ɛ = Γ 01 Γɛ, i.e., ± ɛ L = Γ 01 ɛ L, ±ɛ R = +Γ 01 ɛ R, T 1 -duality : ɛ R Γ 1 Γɛ R, ±ɛ R = +ΓΓ 1 Γ 01 Γ 1 Γɛ R = Γ 01 ɛ R, IIB 0 (1,6) 4 (, , 1) : ±ɛ L = Γ 01 ɛ L, ±ɛ R = Γ 01 ɛ R, namely, ± ɛ = Γ 01 ɛ. (A.22) 18

19 A.3 SUSY projection rules on domain walls Domain walls from defect branes via T-duality IIB 7 3 ( ) T 9 IIA 7 (1,0) 3 ( ,, 9): IIB 7 3 ( ) : ±ɛ = Γ (iσ 2 )ɛ, i.e., ± ɛ L = Γ ɛ R, T 9 -duality : ɛ R Γ 9 Γɛ R, ±ɛ L = Γ Γ 9 Γɛ R = Γ ɛ R, IIA 7 (1,0) 3 ( ,, 9) : ±ɛ L = Γ ɛ R, namely, ± ɛ = Γ Γ(σ 1 )ɛ R. (A.23) IIA (123456, 7) T 9 IIB 6 (1,1) 3 (123456, 7, 9): IIA 6 1 3(123456, 7) : ±ɛ = Γ (σ 1 )ɛ, i.e., ± ɛ L = Γ ɛ R, T 9 -duality : ɛ R Γ 9 Γɛ R, ±ɛ L = Γ Γ 9 Γɛ R = Γ ɛ R, IIB 6 (1,1) 3 (123456, 7, 9) : ±ɛ L = Γ ɛ R, namely, ± ɛ = Γ (iσ 2 )ɛ. (A.24) IIB (12345, 67) T 9 IIA 5 (1,2) 3 (12345, 67, 9): IIB 5 2 3(12345, 67) : ±ɛ = Γ (σ 1 )ɛ, i.e., ± ɛ L = Γ ɛ R, T 9 -duality : ɛ R Γ 9 Γɛ R, IIA 5 (1,2) 3 (12345, 67, 9) : ±ɛ L = Γ ɛ R, ±ɛ L = Γ Γ 9 Γɛ R = +Γ ɛ R, namely, ± ɛ = Γ (σ 1 )ɛ. (A.25) IIA (1234, 567) T 9 IIB 4 (1,3) 3 (1234, 567, 9): IIA 4 3 3(1234, 567) : ±ɛ = Γ (iσ 2 )ɛ, i.e., ± ɛ L = Γ ɛ R, T 9 -duality : ɛ R Γ 9 Γɛ R, ±ɛ L = Γ Γ 9 Γɛ R = +Γ ɛ R, IIB 4 (1,3) 3 (1234, 567, 9) : ±ɛ L = Γ ɛ R, namely, ± ɛ = Γ (σ 1 )ɛ. (A.26) 19

20 IIB (123, 4567) T 9 IIA 3 (1,4) 3 (123, 4567, 9): IIB 3 4 3(123, 4567) : ±ɛ = Γ 0123 (iσ 2 )ɛ, i.e., ± ɛ L = Γ 0123 ɛ R, T 9 -duality : ɛ R Γ 9 Γɛ R, ±ɛ L = Γ 0123 Γ 9 Γɛ R = Γ ɛ R, IIA 3 (1,4) 3 (123, 4567, 9) : ±ɛ L = Γ ɛ R, IIA (12, 34567) T 9 IIB 2 (1,5) 3 (12, 34567, 9): namely, ± ɛ = Γ Γ(σ 1 )ɛ. (A.27) IIA 2 5 3(12, 34567) : ±ɛ = Γ 012 (σ 1 )ɛ, i.e., ± ɛ L = Γ 012 ɛ R, T 9 -duality : ɛ R Γ 9 Γɛ R, ±ɛ L = Γ 012 Γ 9 Γɛ R = Γ 0129 ɛ R, IIB 2 (1,5) 3 (12, 34567, 9) : ±ɛ L = Γ 0129 ɛ R, IIB (1, ) T 9 IIA 1 (1,6) 3 (1, , 9): namely, ± ɛ = Γ 0129 (iσ 2 )ɛ. (A.28) IIB 1 6 3(1, ) : ±ɛ = Γ 01 (σ 1 )ɛ, i.e., ± ɛ L = Γ 01 ɛ R, T 9 -duality : ɛ R Γ 9 Γɛ R, IIA 1 (1,6) 3 (1, , 9) : ±ɛ L = Γ 019 ɛ R, IIA (, ) T 9 IIB 0 (1,7) 3 (, , 9): ±ɛ L = Γ 01 Γ 9 Γɛ R = +Γ 019 ɛ R, namely, ± ɛ = Γ 019 (σ 1 )ɛ. (A.29) IIA 0 7 3(, ) : ±ɛ = Γ 0 Γ(σ 1 )ɛ, i.e., ± ɛ L = Γ 0 ɛ R, T 9 -duality : ɛ R Γ 9 Γɛ R, ±ɛ L = Γ 0 Γ 9 Γɛ R = +Γ 09 ɛ R, IIB 0 (1,7) 3 (, , 9) : ±ɛ L = Γ 09 ɛ R, namely, ± ɛ = Γ 09 (σ 1 )ɛ. (A.30) Descendants from IIB brane IIB (12345, 789) S IIB (12345, 789): IIB 5 3 2(12345, 789) : ±ɛ = Γ ɛ, 20

21 S-duality : ɛ Sɛ, IIB 5 3 4(12345, 789) : ±ɛ = Γ S 1 Sɛ = Γ ɛ. (A.31) IIB (12345, 789) T 5 IIA 4 (1,3) 4 (1234, 789, 5): IIB 5 3 4(12345, 789) : ±ɛ = Γ ɛ, i.e., ± ɛ L = Γ ɛ L, ±ɛ R = Γ ɛ R, T 5 -duality : ɛ R Γ 5 Γɛ R, ±ɛ R = ΓΓ 5 Γ Γ 5 Γɛ R = Γ ɛ R, IIA 4 (1,3) 4 (1234, 789, 5) : ±ɛ L = Γ ɛ L, ±ɛ R = Γ ɛ R, namely, ± ɛ = Γ Γɛ. (A.32) IIA 4 (1,3) 4 (1234, 789, 5) T 4 IIB 3 (2,3) 4 (123, 789, 45): IIA 4 (1,3) 4 (1234, 789, 5) : ±ɛ = Γ Γɛ, i.e., ± ɛ L = Γ ɛ L, ±ɛ R = Γ ɛ R, T 4 -duality : ɛ R Γ 4 Γɛ R, ±ɛ R = ΓΓ 4 Γ Γ 4 Γɛ R = Γ ɛ R, IIB 3 (2,3) 4 (123, 789, 45) : ±ɛ L = Γ ɛ L, ±ɛ R = Γ ɛ R, namely, ± ɛ = Γ ɛ. (A.33) IIB 3 (2,3) 4 (123, 789, 45) T 3 IIA 2 (3,3) 4 (12, 789, 345): IIB 3 (2,3) 4 (123, 789, 45) : ±ɛ = Γ ɛ, i.e., ± ɛ L = Γ ɛ L, ±ɛ R = Γ ɛ R, T 3 -duality : ɛ R Γ 3 Γɛ R, ±ɛ R = ΓΓ 3 Γ Γ 3 Γɛ R = Γ ɛ R, IIA 2 (3,3) 4 (12, 789, 345) : ±ɛ L = Γ ɛ L, ±ɛ R = Γ ɛ R, namely, ± ɛ = Γ Γɛ. (A.34) IIA 2 (3,3) 4 (12, 789, 345) T 2 IIB 1 (4,3) 4 (1, 789, 2345): IIA 2 (3,3) 4 (12, 789, 345) : ±ɛ = Γ Γɛ, i.e., ± ɛ L = Γ ɛ L, ±ɛ R = Γ ɛ R, T 2 -duality : ɛ R Γ 2 Γɛ R, ±ɛ R = ΓΓ 2 Γ Γ 2 Γɛ R = Γ ɛ R, IIB 1 (4,3) 4 (1, 789, 2345) : ±ɛ L = Γ ɛ L, ±ɛ R = Γ ɛ R, namely, ± ɛ = Γ ɛ. (A.35) 21

22 IIB 1 (4,3) 4 (1, 789, 2345) T 1 IIA 0 (5,3) 4 (, 789, 12345): IIB 1 (4,3) 4 (1, 789, 2345) : ±ɛ = Γ ɛ, i.e., ± ɛ L = Γ ɛ L, ±ɛ R = Γ ɛ R, T 1 -duality : ɛ R Γ 1 Γɛ R, ±ɛ R = ΓΓ 1 Γ Γ 1 Γɛ R = Γ ɛ R, IIA 0 (5,3) 4 (, 789, 12345) : ±ɛ L = Γ ɛ L, ±ɛ R = Γ ɛ R, namely, ± ɛ = Γ Γɛ. (A.36) Descendants from IIB 4 (1,3) 3 -brane IIB 4 (1,3) 3 (1234, 567, 9) S IIB 4 (1,3) 4 (1234, 567, 9): IIB 4 (1,3) 3 (1234, 567, 9) : ±ɛ = Γ (σ 1 )ɛ, S-duality : ɛ Sɛ, IIB 4 (1,3) 4 (1234, 567, 9) : ±ɛ = Γ S 1 (σ 1 )Sɛ = Γ (σ 3 )ɛ. (A.37) IIB 4 (1,3) 4 (1234, 567, 9) T 9 IIA (12349, 567): IIB 4 (1,3) 4 (1234, 567, 9) : ±ɛ = Γ (σ 3 )ɛ, i.e., ± ɛ L = Γ ɛ L, ±ɛ R = Γ ɛ R, T 9 -duality : ɛ R Γ 9 Γɛ R, ±ɛ R = ΓΓ 9 Γ Γ 9 Γɛ R = Γ ɛ R, IIA 5 3 4(12349, 567) : ±ɛ L = Γ ɛ L, ±ɛ R = Γ ɛ R, namely, ± ɛ = Γ ɛ. (A.38) IIB 4 (1,3) 4 (1234, 567, 9) T 4 IIA 3 (2,3) 4 (123, 567, 49): IIB 4 (1,3) 4 (1234, 567, 9) : ±ɛ = Γ (σ 3 )ɛ, i.e., ± ɛ L = Γ ɛ L, ±ɛ R = Γ ɛ R, T 4 -duality : ɛ R Γ 4 Γɛ R, ±ɛ R = ΓΓ 4 Γ Γ 4 Γɛ R = Γ ɛ R, IIA 3 (2,3) 4 (123, 567, 49) : ±ɛ L = Γ ɛ L, ±ɛ R = Γ ɛ R, namely, ± ɛ = Γ ɛ. (A.39) IIA 3 (2,3) 4 (123, 567, 49) T 3 IIB 2 (3,3) 4 (12, 567, 349): IIA 3 (2,3) 4 (123, 567, 49) : ±ɛ = Γ ɛ, 22

23 i.e., ± ɛ L = Γ ɛ L, ±ɛ R = Γ ɛ R, T 3 -duality : ɛ R Γ 3 Γɛ R, ±ɛ R = ΓΓ 3 Γ Γ 3 Γɛ R = Γ ɛ R, IIB 2 (3,3) 4 (12, 567, 349) : ±ɛ L = Γ ɛ L, ±ɛ R = Γ ɛ R, IIB 2 (3,3) 4 (12, 567, 349) T 2 IIA 1 (4,3) 4 (1, 567, 2349): namely, ± ɛ = Γ (σ 3 )ɛ. (A.40) IIB 2 (3,3) 4 (12, 567, 349) : ±ɛ = Γ (σ 3 )ɛ, i.e., ± ɛ L = Γ ɛ L, ±ɛ R = Γ ɛ R, T 2 -duality : ɛ R Γ 2 Γɛ R, ±ɛ R = ΓΓ 2 Γ Γ 2 Γɛ R = Γ ɛ R, IIA 1 (4,3) 4 (1, 567, 2349) : ±ɛ L = Γ ɛ L, ±ɛ R = Γ ɛ R, IIA 1 (4,3) 4 (1, 567, 2349) T 1 IIB 0 (5,3) 4 (, 567, 12349): namely, ± ɛ = Γ ɛ. (A.41) IIA 1 (4,3) 4 (1, 567, 2349) : ±ɛ = Γ ɛ, i.e., ± ɛ L = Γ ɛ L, ±ɛ R = Γ ɛ R, T 1 -duality : ɛ R Γ 1 Γɛ R, ±ɛ R = ΓΓ 1 Γ Γ 1 Γɛ R = Γ ɛ R, IIB 0 (5,3) 4 (, 567, 23349) : ±ɛ L = Γ ɛ L, ±ɛ R = Γ ɛ R, namely, ± ɛ = Γ (σ 3 )ɛ. (A.42) A.4 Uplifting to M-theory Here we uplift type IIA branes to those of M-theory. The mass formulae of type IIA branes are rewritten as those of M-theory branes via the relation (2.11). Uplifting IIA solitonic five-branes IIA NS5(12345) uplift M5(12345): M NS5 = R 1R 2 R 3 R 4 R 5 g 2 sl 6 s M M5 = R 1R 2 R 3 R 4 R 5 l 6 P IIA KK5(12345,9) uplift KK6(12345,9): M KK5 = R 1R 2 R 3 R 4 R 5 (R 9 ) 2 g 2 sl 8 s, ±ɛ = Γ ɛ,, ±η = Γ η. (A.43), ±ɛ = Γ Γɛ, 23

24 M KK6 = R 1R 2 R 3 R 4 R 5 R (R 9 ) 2, ±η = Γ η. (A.44) IIA 5 2 uplift 2 (12345, 89) 5 3 (12345, 89 ): l 9 P M = R 1R 2 R 3 R 4 R 5 (R 8 R 9 ) 2 gsl 2 10, s ±ɛ = Γ ɛ, M 5 3 = R 1R 2 R 3 R 4 R 5 (R 8 R 9 R ) 2 l 12, P ±η = Γ η. (A.45) IIA 5 3 uplift 2 (12345, 789) 5 (1,3) (12345, 789, ): M = R 1R 2 R 3 R 4 R 5 (R 7 R 8 R 9 ) 2 gsl 2 12, s ±ɛ = Γ Γɛ, M 5 (1,3) = R 1R 2 R 3 R 4 R 5 (R 7 R 8 R 9 ) 2 (R ) 3 l 15, P ±η = Γ η. (A.46) Uplifting IIA defect branes We also uplift the defect branes in type IIA theory (2.7). 1 6 uplift 4 (1, ) 2 6 (1, ): M = R 1(R 2 R 3 R 4 R 5 R 6 R 7 ) 2 gsl 4 14, s ±ɛ = Γ 01 Γɛ, M 2 6 = R 1R (R 2 R 3 R 4 R 5 R 6 R 7 ) 2 l 15, P ±η = Γ 01 η. (A.47) 0 (1,6) 4 (, , 1) uplift 0 (1,7) (, , 1): M 0 (1,6) 4 = (R 2R 3 R 4 R 5 R 6 R 7 ) 2 (R 1 ) 3 g 4 sl 16 s M 0 (1,7) = (R 2R 3 R 4 R 5 R 6 R 7 R ) 2 (R 1 ) 3 l 18 P, ±ɛ = Γ 01 ɛ,, ±η = Γ 01 η. (A.48) Other defect branes in (2.7) are uplifted to some of the (exotic) branes in M-theory which have already appeared. References [1] M. Blau and M. O Loughlin, Aspects of U-duality in matrix theory, Nucl. Phys. B 525 (1998) 182 [hep-th/ ]. 24

25 [2] N. A. Obers and B. Pioline, U-duality and M-theory, Phys. Rept. 318 (1999) 113 [hepth/ ]. [3] E. Eyras and Y. Lozano, Exotic branes and nonperturbative seven-branes, Nucl. Phys. B 573 (2000) 735 [hep-th/ ]. [4] E. Lozano-Tellechea and T. Ortín, 7-branes and higher Kaluza-Klein branes, Nucl. Phys. B 607 (2001) 213 [hep-th/ ]. [5] J. de Boer and M. Shigemori, Exotic branes and non-geometric backgrounds, Phys. Rev. Lett. 104 (2010) [arxiv: [hep-th]]. [6] A. Giveon and D. Kutasov, Brane dynamics and gauge theory, Rev. Mod. Phys. 71 (1999) 983 [hep-th/ ]. [7] B. R. Greene, A. D. Shapere, C. Vafa and S. T. Yau, Stringy cosmic strings and noncompact Calabi-Yau manifolds, Nucl. Phys. B 337 (1990) 1. [8] E. A. Bergshoeff, J. Hartong, T. Ortín and D. Roest, Seven-branes and Supersymmetry, JHEP 0702 (2007) 003 [hep-th/ ]. [9] T. Kikuchi, T. Okada and Y. Sakatani, Rotating string in doubled geometry with generalized isometries, Phys. Rev. D 86 (2012) [arxiv: [hep-th]]. [10] J. de Boer and M. Shigemori, Exotic branes in string theory, Phys. Rept. 532 (2013) 65 [arxiv: [hep-th]]. [11] T. Kimura, Defect (p, q) five-branes, Nucl. Phys. B 893 (2015) 1 [arxiv: [hep-th]]. [12] T. Kimura, S. Sasaki and M. Yata, Hyper-Kähler with torsion, T-duality, and defect (p, q) five-branes, JHEP 1503 (2015) 076 [arxiv: [hep-th]]. [13] T. Okada and Y. Sakatani, Defect branes as Alice strings, JHEP 1503 (2015) 131 [arxiv: [hep-th]]. [14] E. A. Bergshoeff, T. Ortín and F. Riccioni, Defect branes, Nucl. Phys. B 856 (2012) 210 [arxiv: [hep-th]]. [15] Y. Sakatani, Exotic branes and non-geometric fluxes, JHEP 1503 (2015) 135 [arxiv: [hep-th]]. [16] A. Kleinschmidt, Counting supersymmetric branes, JHEP 1110 (2011) 144 [arxiv: [hep-th]]. [17] D. Andriot and A. Betz, β-supergravity: a ten-dimensional theory with non-geometric fluxes, and its geometric framework, JHEP 1312 (2013) 083 [arxiv: [hep-th]]. [18] D. Andriot and A. Betz, NS-branes, source corrected Bianchi identities, and more on backgrounds with non-geometric fluxes, JHEP 1407 (2014) 059 [arxiv: [hep-th]]. 25

26 [19] C. D. A. Blair and E. Malek, Geometry and fluxes of SL(5) exceptional field theory, JHEP 1503 (2015) 144 [arxiv: [hep-th]]. [20] J. P. Gauntlett, Intersecting branes, In Seoul/Sokcho 1997, Dualities in gauge and string theories, pp [hep-th/ ]. [21] J. H. Schwarz, Covariant field equations of chiral N = 2 D = 10 supergravity, Nucl. Phys. B 226 (1983) 269. [22] Y. Imamura, String, M and Matrix theories, Soryushiron Kenkyu 96-5 (1998) 187 (in Japanese). [23] E. A. Bergshoeff, A. Kleinschmidt and F. Riccioni, Supersymmetric domain walls, Phys. Rev. D 86 (2012) [arxiv: [hep-th]]. 26

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